A heartbroken mum has revealed her son (12) died as a result of a sepsis infection after contracting the flu.

Dylan Day passed away on January 20 and his heartbroken parents Phil and Sarah are urging other parents to be aware of the symptoms of sepsis.

My son died 2 weeks ago from flu b & sepsis. Please help me to help others. Read about Dylan. If you are ill & no better ‘just ask could it be sepsis’. How can my boy die in an horrific way. Please share SEPSIS Kills. #dylansarmy. My brave boy. Love Dylan’s Mum xxx pic.twitter.com/rzZ5axKr1k

The cause of death was sepsis infection which had been brought on by Dylan's Flu B illness, the Stoke Sentinel reports.

Dylan tragically died just three days after being brought to the GP by his parents due to a headache and sore throat.

“We felt desperate and helpless. All I could do was kiss and hold him. It was horrific, it all happened so quickly. We are still in shock with what’s happened. All we want to do is share what has happened," devastated mum Sarah told the paper.

She wants all parents to ask about the symptoms of sepsis.

Footballer Dylan played with local club Leek CSOB's under-14 team and was a "dream child" his mum said.

What a football community we have. My footballing son died two weeks ago from flu b & sepsis. They all came together to pay tribute to my son Dylan Day. PLEASE Know the symptoms of SEPSIS & don’t live an horrific nightmare like me. Love Dylan’s Mum x pic.twitter.com/DnHqrVtu3o